<template>
  <div class="ratingselect">
    <div class="rating-type border-bottom">
      <span @click="select(2,$event)"
            class="block positive"
            :class="{'active':selectType===2}">{{desc.all}}<span class="count">{{ratings.length}}</span></span>
      <span @click="select(0,$event)"
            class="block positive"
            :class="{'active':selectType===0}">{{desc.positive}}<span class="count">{{positives.length}}</span></span>
      <span @click="select(1,$event)"
            class="block negative"
            :class="{'active':selectType===1}">{{desc.negative}}<span class="count">{{negatives.length}}</span></span>
    </div>
    <div @click="toggleContent"
         class="switch"
         :class="{'on':onlyContent}">
      <span class="icon-check_circle"></span>
      <span class="text">只看有内容的评价</span>
    </div>
  </div>
</template>

<script>
const POSITIVE = 0
const NEGATIVE = 1
const ALL = 2

const EVENT_TOGGLE = 'toggle'
const EVENT_SELECT = 'select'

export default {
  name: 'RatingSelect',
  props: {
    ratings: {
      type: Array,
      default () {
        return []
      }
    },
    selectType: {
      type: Number,
      default: ALL
    },
    onlyContent: {
      type: Boolean,
      default: false
    },
    desc: {
      type: Object,
      default () {
        return {
          all: '全部',
          positive: '满意',
          negative: '不满意'
        }
      }
    }
  },
  computed: {
    positives () {
      return this.ratings.filter((rating) => {
        return rating.rateType === POSITIVE
      })
    },
    negatives () {
      return this.ratings.filter((rating) => {
        return rating.rateType === NEGATIVE
      })
    }
  },
  methods: {
    select (type, event) {
      if (!event._constructed) {
        return
      }
      this.$emit(EVENT_SELECT, type)
    },
    toggleContent (event) {
      if (!event._constructed) {
        return
      }
      this.$emit(EVENT_TOGGLE)
    }
  }
}
</script>

<style lang="stylus" scoped>
@import 'common/stylus/icon.styl'
.ratingselect
  .rating-type
    padding 18px 0
    margin 0 18px
    font-size 0
    .block
      display inline-block
      padding 8px 12px
      margin-right 8px
      line-height 16px
      border-radius 2px
      font-size 12px
      color rgb(77, 85, 93)
      &.active
        color #fff
      .count
        margin-left 2px
        font-size 8px
      &.positive
        background rgba(0, 160, 220, 0.2)
        &.active
          background rgb(0, 160, 220)
      &.negative
        background rgba(77, 85, 93, 0.2)
        &.active
          background rgb(77, 85, 93)
  .switch
    padding 12px 18px
    line-height 24px
    border-bottom 1px solid rgba(7, 17, 27, 0.1)
    color rgb(147, 153, 159)
    font-size 0
    &.on
      .icon-check_circle
        color #00c850
    .icon-check_circle
      display inline-block
      vertical-align top
      margin-right 4px
      font-size 24px
    .text
      display inline-block
      vertical-align top
      font-size 12px
</style>
